Smelting furnace



H. L. CHARLES SMELTING FURNACE Aug.y 13, 1929.

Y. Filed Nv. 27 .1926

2 sheets-sheer 1 rnlltlu." f////// H. L QHALES SMELTING FURNACE Hg, l@

2 Sneets-sneet 2 Filed NOV. 27 1926 INVENTOR af/ A f ATTORNEY Aff/640154.

HENRY L. TST L:A

FFIE.

or wer, WN.

..1 a nunon application iled December 29, 1925, Serial No. 78,155.Bivided and this application tiled Iovember 27, 1926.

My invention has particular reference to improvements inlvsmelt'furnaces of the reverberatory type, and 1ts ob1ects, generally stated arto provide a series of water- 5 cooled brichs, Ehe utilization of whichaffords an rch of lighter construction and thinner furnace walls; andzto aord afurnace ap roximately one-third smaller in size, having thesmeltingcacitypf a reverberatory furnace of' usual enslons adapted to alar e output. .V y

the accompanying drawingsy y Figure 1 is a cross sectionof the ce drawnon the line 1-1, of Fig. 2;'

Fig. 2, a plan view of this same, broken away, the rmg end being indicabut the 'flueeud omitted; 1

. Fig. 3, a longitudinal section through the line3-3,ofF1g. 2'; i v --12@ Fig.' 4, a vertical sectionxo one ci the hollow cooling bricks, withits cooling'chamberinsertedgand, L Y '1 Fig.v 5, a cross section of :eontheline5-5,ofFig.4. u Q5 The base of the furnace l, cocted oi concreteinthe usual manner, supports verticall 4extending1 and parallel sideiii: 2,

a w 3,: representing the Yend,i a due end, which isl ofordinaryjconstruction and hencenot-shown, andan archedroof alldesignated as 4.

he hearth shown lisation for Letters Patent of the fl tutes, Non kia-LIb9? 29th, i925, of which this is a i application, and while the m hereinho and described are particularly use in connection with sucha hearthstructure, it

\ W111i be, obvious to. am annee in ne es that said means caribe as wellapplied to ce' having a' horizontally v -v-,rw v

hearth, or a hearth of other form.

. The hearth, of silicious material, comprises .an inl banked section 5,con- 45 nace, and having its upper terminal near the arch. A moundportion 6, divi the smelting zone ofthe earth inttwo parts, extendslongitudinally of t 'van' for 0 about two-thirds of its length, and itispro vided at its free end 'with a inted terminal 7. Sand Si ldenotechannele sections disposed between the mound and the banked sectionswhich are adapted to cooperate with W Said terminal in facilitating' thehow of the ness. While ll do not desire to be limited tospeciic ensions,under the coef .L 1 fr tiguous with each side and end of the rur-VSerial No. 151,.

metal into the metal bath 10 and out through the tap hole 11. Ilhe matteand slag Vlines Jig the metal lbath hare denoteddby 12 and respective sowin a ee ath brought close tthe archg p y ln the ordinary furnace ofthis class, avera 'ng about 125V festin length, the width o the sidewalls ranges from 21,4), to 3 feet, with an arch from 18 to 24 inches inthick.-

tion l heremfore and presently to be described, it is practical toreduce the thickness of each wall and of the arch to l foot,

and reduce the leb of the furnace to ap- 70 proximately feet, Awithout adecrease of output. l Adjacent the firing end of the fr acewhere thegreatest heet is generated--I provide an arch formation of hollowbricks, said bricks being denotedas 20. In the present ement of theinvention, this formation consists, as shown in' Fig. 3, of'threesets ofsaidbricks, said sets being designated as 2l., as each are oi idenmcalconstruction. Each set constitutes the enclosing roof structure at this.portion of the furnace, and, after the iirstone, is i. @sed in.ascending and step relation to an adjacent set, and they provided withexpansion joints 22, as are l c. n -cooninarch construction. lnview,howfisthe'subgect el i e ever, of the cooling means` to be described andwhich sheet a reduction.. in' expansion,l these joints may be aboutone-thirdas thick those coonly required. The fis. of the arch may be.constructed of brick, and im if., suitable i ia Said Stpped relationo'the dierent sections being .maintained throughout, as indicated inYFig.35Min. allow for expansion of the gases kpi'noilii'ced by the operation,d to imit the erosive edect o the ga on the arch.

The side walls` and ends of the furnace may be oi light and ordinarybrick construction, 'by ren ci the protection aorded 10o by the m edons5. The upper -ends of the side walls, however, directly ex osed to theheat in the sono covered by sai sets ust described, are also built up ofthe said ollow bricks, as shown in Fig. 1, the saine 105 being disposedin the same vertical planes occupied by the similar bricks in the arch.Should the furnace be one in which a hearth of diderent form is utilizedand which would adord but little, ii-any, protection to the 11()extending close to the,

I side walls, it would be desirable as is evi.

. munication with the container.

A cold water main and a hot water header pipe 41 are operatively mountedon the furnace for each transversely extending row of brick h1 the archand the adjacent brick inthe' side Valls which carry each a containerjust described, and the same are connected up with the containersthrough the Ts 42 andthe rubber tubes 43 and 44, thereby establishing acirculation of water l through said containers. As is obvious, if deemeddesirable, but one cold water main 25 and 'one' hot water header may beprovided for each two rows of the cooling brick, and the adjacentcooling brick disposed in the side walls.

` The. openings to accommodate the centrally located oppers and the sidehoppers 51, where located in connection' with the cooling means, areprovided by eliminate ing a hollow brick for each, as indicated in Fig.1 otherwise the hoppers, arranged in the relative positions own and inthe req uircd numbers, present the usual construct1on.- The means forfiring the vfurnace 52,'

, and the buckstaves and connections, enen ally designated as 53, arealso of or inary construction, and perform their common.

functions. v Y .l lThe cooling means referred to permit a relativelylight construction inthe walls and roof, thereby reducing the size ofthehfurnace' without reducing its capacity, and at the same time: addingto its life by .limiting the "corrosive eect of the smelting o erationslllgsit will be noted, the close end of each of said hollow brick aslaid provides an inner peripheral section of the furnace and the openend provides an outside section of the furnace,hence if the same shouldbe come defective, through erosion or otherwise,

' it can be readily replaced as it is accessible exi teriorly ofthefurnace. Said means, as is evident, may be installed in othersections` of the furnace more remote from the firing l, end than areshown inthe present embodiment, and other changes in andk modificationsof the construction described ma be made without departing fromthespirit of my (il'vention or sacrificing 'its advantages.

aim: Y

- 1. In a reverberatory smelting furnace having verticall extendingsideand end walls and a roo cooling means located ads of `hollow brick laidin the roo walls conti the c osed ends roviding inner peripheral portiuns of the nace andthe open ends jacent the firing'end, comprisinv' aplurality f f and in the ous to the roof, each brick .befY

ing o n a one end and closed at' the other,.

extending exteiorly thereof a metallic con l tainer mounted within each"brick, a cold water main, a hot water header pi and itV means foroperatively connecting said rmain and pipe with each container.

2. In a smelting furnace, an arch construction comprisin a set of hollowbrick laid transversely o the arch, each'brick being open at one end andclosed at the other, the closed ends providing inner peripheral p0r- Stvtions of the furnace and the open ends exexteriorly' thereof,l aplurality of sets o cending and stepped relation with the first set,relatively thin expansion joints disposed between the sets, a metalliccontainer mount-l ed within'each brick, a cold water main, a

` hot Water header pipe, and means for opi' eratively connecting saidmain and pipe with each ycontainer to provide for a4 circulation u ofwater throu h the container:

, 3. In a rever ratory smelting furnace, a

brick construction for sections of the furnacesubjected to the corrosiveeiectof smelting operations, comprising la plurality of hollow similarconstruction located in as- I brick, each brick bein 'o "n at one endand 'closed at the other, t e vclo's'ed ends rovid` ing inner peripheralportions'of t e furnace and the open ends extending" exteriorly thereof,a metallic container mountedl Within each brick, a cold Water main, ahot Water 1 header pipe, and flexible connections for each contamer withthe cold water main and the hot water pipe for establishing a .circu-Vlation of water through the container.

r 4. In a smelting furnace having a 'cooling system, including a coldwater main and a hot water header pipe, a plurality `of hollow coolingbrick, la metallic 'container detachv ably mounted in each ofsaid-brick, and conQV nections for each container with the main and vpifor establishing a'. circulation of Water` t rough the container. o.

HENRY L cnAnLns.

